MAC97A4G

Triacs Overview

The MAC97A4G is a bidirectional triac manufactured by onsemi, designed for AC switching and control applications. It features an 8 A non-repetitive peak on-state current and a rated repetitive off-state voltage of 400 V. The device operates within a junction temperature range of -40°C to +110°C and is housed in a TO-92-3 through-hole package. Key electrical parameters include a maximum holding current of 10 mA, a gate trigger voltage of 2.5 V, and a gate trigger current of 7 mA. The on-state voltage is specified at 1.9 V, with a maximum off-state leakage current of 10 µA.

Triacs Feature Summary

• Bidirectional conduction capability for AC circuit control
• Robust thermal performance across extended industrial temperature ranges
• Standardized TO-92-3 leaded package for through-hole mounting

Triacs Applications

• General AC load switching
• Lighting control circuits
• Small motor speed regulation

Triacs Procurement Notes

Verify component authenticity against manufacturer specifications due to potential availability from secondary sources. Confirm RoHS compliance status and check for end-of-life notices or obsolescence announcements prior to procurement. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Triacs Selection Notes

Select this component when a 400 V blocking voltage is sufficient for the application. Verify that the gate drive circuit can supply at least 7 mA to ensure reliable triggering. Consider the thermal management requirements for the TO-92 package under continuous load conditions.

Triacs Part Context

This part belongs to the MAC97A6 series of triacs from onsemi. It shares similar structural characteristics with other members of the family but differs in voltage rating. The MAC97A4G specifically offers a 400 V rating, distinguishing it from higher voltage variants like the MAC97A6 which supports 600 V.

Triacs Replacement Considerations

The MAC97A4G may be functionally replaced by other 400 V triacs in TO-92 packages with comparable current ratings. Verify pinout compatibility and gate sensitivity before substitution.